Storage structure



FIG. 1 shows a side view of the storage structure;

FIG. 2 shows a perspective view of the storage structure;

FIG. 3 shows an end view of the storage structure; and,

FIG. 4 shows a top plan view of the storage structure.

The bottom is plain and unornamental.

The side and end views are mirror images. 

I claim, the ornamental design for a storage structure, as shown and described. 